android 网络编程 LocalSocket

ゝ一世哀愁。 2022-08-08 00:54 194阅读 0赞

啥也不说了， 直接上代码， run 一下就理解了。

/\*  
\* Copyright (C) 2007 The Android Open Source Project  
\*  
\* Licensed under the Apache License, Version 2.0 (the "License");  
\* you may not use this file except in compliance with the License.  
\* You may obtain a copy of the License at  
\*  
\* http://www.apache.org/licenses/LICENSE-2.0  
\*  
\* Unless required by applicable law or agreed to in writing, software  
\* distributed under the License is distributed on an "AS IS" BASIS,  
\* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
\* See the License for the specific language governing permissions and  
\* limitations under the License.  
\*/  
  
package com.example.android.helloactivity;  
  
import java.io.IOException;  
import java.io.InputStream;  
import java.io.OutputStream;  
  
import android.app.Activity;  
import android.net.LocalServerSocket;  
import android.net.LocalSocket;  
import android.net.LocalSocketAddress;  
import android.os.Bundle;  
import android.util.Log;  
import android.view.View;  
import android.widget.Button;  
  
public class HelloActivity extends Activity implements View.OnClickListener \{  
  
private static String TAG = "HelloActivity";  
private LocalSocket receiver;  
private LocalServerSocket localSocket;  
private LocalSocket sender;  
private static final int BUFFER\_SIZE = 4;  
  
private boolean running;  
private int i = 1;  
  
@Override  
public void onCreate(Bundle savedInstanceState) \{  
super.onCreate(savedInstanceState);  
  
// Set the layout for this activity. You can find it  
// in res/layout/hello\_activity.xml  
View view = getLayoutInflater().inflate(R.layout.hello\_activity, null);  
setContentView(view);  
Button mButton\_1 = (Button) view.findViewById(R.id.one);  
Button mButton\_2 = (Button) view.findViewById(R.id.two);  
mButton\_1.setText("send and receve");  
mButton\_2.setText("cancel");  
mButton\_1.setOnClickListener(this);  
mButton\_2.setOnClickListener(this);  
\}  
  
@Override  
public void onClick(View v) \{  
// TODO Auto-generated method stub  
Log.d(TAG, "V ==" + v.getId());  
switch (v.getId()) \{  
  
case R.id.one: \{  
sendMessage();  
break;  
\}  
case R.id.two: \{  
  
running = false;  
try \{  
lss.close();  
\} catch (Exception e) \{  
// TODO: handle exception  
\}  
try \{  
if (receiver.isConnected()) \{  
receiver.close();  
\}  
\} catch (Exception e) \{  
// TODO: handle exception  
\}  
break;  
\}  
\}  
\}  
  
private int sendMessage() \{  
  
receiver = new LocalSocket();  
try \{  
lss = new LocalServerSocket("Local\_Socket");  
  
receiver.connect(new LocalSocketAddress("Local\_Socket"));  
receiver.setReceiveBufferSize(BUFFER\_SIZE);  
receiver.setSendBufferSize(BUFFER\_SIZE);  
  
sender = lss.accept();  
sender.setReceiveBufferSize(BUFFER\_SIZE);  
sender.setSendBufferSize(BUFFER\_SIZE);  
  
// 将控制器running设置为true  
running = true;  
  
// 启动发送接受线程  
new Thread(local\_send).start();  
new Thread(local\_receive).start();  
\} catch (IOException e) \{  
e.printStackTrace();  
\}  
  
return 0;  
\}  
  
Thread local\_receive = new Thread() \{  
public void run() \{  
InputStream m\_Rece = null;  
  
try \{  
m\_Rece = receiver.getInputStream();  
  
byte\[\] data;  
int receiveLen = 0;  
  
while (running) \{  
receiveLen = receiver.getReceiveBufferSize();  
/\*\*  
\* the 4 can replaced by receiveLen  
\*/  
data = new byte\[4\];  
m\_Rece.read(data);  
Log.i(TAG, "receiver.getReceiveBufferSize()"  
\+ new String(data).toString());  
Thread.sleep(1000);  
  
// 将i设为0  
i = 0;  
\}  
  
m\_Rece.close();  
receiver.close();  
\} catch (IOException e) \{  
e.printStackTrace();  
\} catch (InterruptedException e) \{  
e.printStackTrace();  
\}  
\}  
\};  
  
Thread local\_send = new Thread() \{  
// 线程运行函数  
public void run() \{  
OutputStream m\_Send = null;  
  
try \{  
m\_Send = sender.getOutputStream();  
  
while (running) \{  
byte\[\] data = "123".getBytes();  
sender.setSendBufferSize(data.length);  
sender.setReceiveBufferSize(data.length);  
m\_Send.write(data);  
Log.i(TAG, "local\_send.data=" + new String(data));  
m\_Send.flush();  
  
Thread.sleep(100);  
i++;  
\}  
  
m\_Send.close();  
sender.close();  
\} catch (IOException e) \{  
e.printStackTrace();  
\} catch (InterruptedException e) \{  
e.printStackTrace();  
\}  
\}  
\};  
\}